Added type definitions for docusign-esign nodejs client (#47040)

* Added type definitions for docusign-esign

* Fixed pull request errors

Co-authored-by: edwin.quimbo <equimbo@SCUNBCHQ02594.local>

types/docusign-esign/docusign-esign-tests.ts

@@ -0,0 +1,80 @@
+import * as docusign from 'docusign-esign';
+
+const oAuth = docusign.ApiClient.OAuth;
+const scopes = [oAuth.Scope.SIGNATURE, oAuth.Scope.IMPERSONATION];
+
+interface RequestParams {
+    token: string;
+    baseUrl: string;
+    accountName: string;
+    accountId: string;
+}
+
+interface AccessToken {
+    jwtToken: string;
+    tokenType: string;
+    expiresIn: number;
+}
+
+const apiClient = () => {
+    const basePath = 'base/path';
+    const oAuthBasePath = 'oauth/path';
+    return new docusign.ApiClient({ basePath, oAuthBasePath });
+};
+
+const getEnvelope = async (envelopeId: string, options: { advancedUpdate?: string; include?: string }) => {
+    const params = await getDsRequestParams();
+    const client = await getClient(params.token);
+    const envelopesApi = new docusign.EnvelopesApi(client);
+
+    const results = await envelopesApi.getEnvelope(params.accountId, envelopeId, options);
+    return results;
+};
+
+const getClient = async (token: string) => {
+    const client = apiClient();
+    client.addDefaultHeader('Authorization', `Bearer ${token}`);
+    return client;
+};
+
+const getDsRequestParams = async (): Promise<RequestParams> => {
+    const authToken = await getAccessToken();
+    const { jwtToken, tokenType, expiresIn } = authToken;
+    const cacheExpiration = expiresIn - 300;
+    const userInfo = await getUserInfo(jwtToken);
+    const { accountId, baseUri, accountName } = userInfo;
+
+    return {
+        token: jwtToken,
+        baseUrl: baseUri,
+        accountName,
+        accountId,
+    };
+};
+
+const getAccessToken = async (): Promise<AccessToken> => {
+    const privateKey: Buffer = Buffer.from('read private key file');
+    const integratorKey = 'integrator key';
+    const apiUserGuid = 'api user id';
+    const client = apiClient();
+    const results = await client.requestJWTUserToken(
+        integratorKey,
+        apiUserGuid,
+        scopes,
+        privateKey,
+        3600,
+    );
+
+    return {
+        jwtToken: results.body.access_token,
+        tokenType: results.body.token_type,
+        expiresIn: results.body.expires_in,
+    };
+};
+
+const getUserInfo = async (token: string) => {
+    const client = apiClient();
+    client.setOAuthBasePath('set oauth base path');
+    const results = await client.getUserInfo(token);
+    return results.accounts.find((account: { isDefault: string }) => account.isDefault === 'true');
+};

types/docusign-esign/tsconfig.json

@@ -0,0 +1,24 @@
+{
+    "files": [
+        "index.d.ts",
+        "docusign-esign-tests.ts"
+    ],
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6",
+            "dom"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    }
+}

types/docusign-esign/tslint.json

@@ -0,0 +1,3 @@
+{
+    "extends": "dtslint/dt.json"
+}